油桐是我国南方重要木本工业油料作物。种子榨出的油是桐油,桐油在工农业生产上应用最多,又是对外贸易传统物资。我国栽培油桐历史悠久,积累经验比较丰富。我省目前正在积极恢复发展油桐生产,要求三年开花结实,五年亩产种子500斤。特就油桐栽培技术,提出初步意见,供各地参考。 一、选种 毛主席教导我们;“有了优良品种,即不增加劳动力、肥料,也可获得较多的收成。”我国桐油分布地区较广,栽培历史又长,油桐性状必然会产生许多变异。我国油桐产区广大劳动人民,在长期生产实践中,选育出许多优良地方品种、类型。在光桐（三年桐）中,有对年桐（周岁桐）,柿饼桐（蟠桐）,小米桐（七姊妹、步步桐、狗卵桐）,大米桐（五爪桐）,柴桐（满天星）;在绉桐（千年桐）中,有大果绉桐,小果绉桐及棱形绉桐。实践证明,我省发展油桐,可选用光桐中的米桐和柴桐。米桐和柴桐都是乔 Tung tree is an important woody oilseed crop in South China. Seed oil squeezed out is tung oil, tung oil in industrial and agricultural production most used, but also traditional foreign trade materials. Tung oil cultivation in our country has a long history, rich experience accumulated. The province is now actively resuming the development of tung oil production, requiring three years of flowering strong, five-year yield of 500 kg per mu. Special on tung tree cultivation techniques, put forward their views for reference. First, the selection of Chairman Mao taught us; “With excellent varieties, that is, without increasing labor, fertilizer, but also get more harvest.” China’s tung oil distribution in a wider area, a long history of cultivation, tung oil traits will inevitably produce many variation. The majority of working people in China’s tung oil producing area have bred many excellent local varieties and types in long-term production practices. In Tongtong (Trichosanthes), there are a number of annual Tong (age Tong), persimmon Tong (Pancake), millet Tong (seven sisters, Steppe, Doggytong), rice Tong Tong (Gypsophila paniculata); in crepeng (millet), there are large fruit crepele, small fruit crepepede and prismatic crepe. Practice has proved that the development of tung oil in our province, the choice of tung oil and Chai Tong. Misato and Chai Tong are Joe